I prefer Rockman 3, as I like the copy system abilities better than the ones from Rockman 4, and because of that game not starring Rockman's charged shot ability, making the gameplay slightly different. Also, in Rockman 4 (for the Nintendo Famicom), the Wily Machine could be damaged only by hitting its central "gem" using a New Rock buster/charged shot, excluding Drill Bomb, which I find unfair.
